Peter Eigen, a German lawyer and former World Bank manager in Africa and Latin America, may be the most influential person ever in the world of anti-corruption and compliance. In Berlin in 1993 he founded the NGO Transparency International.
The mission was to promote transparency and accountability in international development, and that's what it has done.
Eigen chaired TI from '93 to '05 and now heads its advisory council.
Here's a wonderful Ted Talk he gave last year on the history of collective action against grand corruption.